fluorescent HYALITE OPAL - Spruce Pine, North Carolina, USA
Green SW and LW fluorescing Opal-AN "Hyalite" with small red Almandine garnet crystals, light Smoky Quartz and Muscovite mica in white Albite matrix (fluorescent dark red SW)
included uranyl salts make this specimen Geiger sensitive
ex William Babcock #1026
Measures approximately 4 x 2 x 0.75 inch, 5.29 oz / 102 x 51 x 19 mm, 150g
this specimen is featured on mindat, minID: RT8-XEF
Item # A0071114
To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).